Finding the Fourth Proportional to 1,721.72, 2,376.03 and 935.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.72 : 2,376.03 = 935.82 : x
2. Step 2: Convert to fraction form
   1,721.72/2,376.03 = 935.82/x
3. Step 3: Cross multiply
   1,721.72x = 2,376.03 × 935.82
4. Step 4: Simplify right side
   1,721.72x = 2,223,536.39
5. Step 5: Solve for x
   x = 2,223,536.39/1,721.72
6. Step 6: Final answer
   x = 1,291.47